Daniel j



D. J. LEVEY.

MOLD.

APPLICATION FILED 1ULY10| 1919.

Patented Oct. 28, 1919.

. molds and the base thereof being in full.

UNITED STATES PATENT OFFICE.

DANIEL J. LEVEY, 0F FRANKFORD, PENNSYLVANIA.

MOLD.

Application filed July 10, 1919.

To all whom it may concern Be it known that I. DANIEL J. LnvEY, a citizen of the llnited States, residing at l rankford. in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Molds, of which the following is a specification.

The invention relates to molds for casting metal. the purpose being the provision of a mold which is kept. cool by water.

The invention has for its object to provide a mold which is hollow for containing water or other cooling medium to prevent the burning of the mold and to insure a rapid cooling of the casting with the re-.

sult that the capacity of the foundry is materially increased because of the possibility to use a mold more frequently in a given time.

The invention is particularly designated for casting pipe, hollow columns and like articles requiring the use. of a mold embodying a core and a jacket between which the molding space is formed. In accordance with the invention, the mold may be of any configuration depending upon the design and character of the article to be molded.

The drawing illustrates a preferred embodiment of the invention. However, it is to he understood that in adapting the same to meet different conditions, various changes in the form, proportion, and minor details of construction may be resorted to without departing from the nature of the invention as claimed hereinafter.

Referring to the accompanying d 'awing,

Figure l is a side view of a gang of.

pipe molds embodying the invention, certain molds being in section together with the supporting part of the base and other Fig. -2 is a vertical section on the line 22 of Fig. 1.

Fig. 3 is a top plan view of the gang of molds shown in Fig. 1, the molds at one end being in section.

Corresponding and like parts are referred to in the following description andindicated in the several views of the drawing by like reference characters.

Figs. 1 and 3 of the drawing designate a gang of pipe molds which are mounted upon a base common thereto. Inasmuch as the molds are of like construction a detail description of one will suffice for a clear Specification of Letters Patent.

Patented Oct. 28, 1919.

Serial No. 309,840.

understanding of each. Each mold comprises a core 1 and a jacket 2. The core 1 is hollow and disposed centrally within the jacket so as to leave a uniform space 3 to receive the casting. Each of the mold members is hollow so ing medium such as water. The core 1 consists of a hollow member of tubular form. A cap 4 closes the upper end of the core 1 and is provided with a centrally disposed vent tube 5 for the escape of steam. The jacket 2 or outer mold member consists of a hollow cylinder comprising inner and out-er spaced shells or tubes. The space formed between the shells or tubes comprising the outer mold member is' adapted to receive a cooling medium, such as Water and is closed at its upper end by means of a ring 6. A vent tube 7 provides for the escape of steam.

A plurality of molds in the form of a gang are mounted upon a base which consists of a foundation 8 preferably of cement and a bed 9 of metal. The bed 9 is supported upon the foundation 8 and receives the lower ends of the mold members and forms a closure therefor and for the molding space 3. The lower ends of the mold members are stepped into grooves formed in the bed 9 for their reception, whereby said members are held in proper position. The water spaces of the jackets or outer members of the molds are connected in series by nipples 10 so that the water may circulate through the series from one to the other. A pipe 11 connects with a suitable source of water supply and a pipe 12 carries off the heater water. It is to be understood that a constant flow of water may be maintained so as to rapidly cool the mold after the castings have been poured.

A water pipe 13'is embedded in the founda-tion 8 and connects with a suitable source of supply at one end and with a point of discharge at its opposite end. Tubes 14 extend vertically through the foundation 8 and bed 9 and establish communication between the pipe 13 and the cores or. .inner mold members 1. While water is preferred as the cooling medium nevertheless it is to be understood that a cooling medium of any nature may be employed, liquid however being preferred.

It is observed that the top sides of the cap a are made rounding. This prevents the lodging of the molten metal thereon and enas to receive a cool ables said caps to be utilized as means for directing the molten metal into the mold spaces 3.

A mold constructed in accordance with the invention is prevented from burning and may be used frequently because of the rapid cooling of the metal when poured. It is also possible to employ mold members of metal because the molten metal will nottend to fuse the walls of the mold because of the action of the cooling medium which keeps the walls of the mold comparatively cool and prevents their being raised to such a temperature required to reduce the same to a molten state.

The foregoing description and the drawing have reference to what may be considered the preferred, or approved form of my invention. It is to be understood that I may make such changes in construction and arrangement and combination of parts, ma terials, dimensions, et cetera, as may prove expedient and fall within the scope of the appended claims.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. A gang of molds, each mold consisting of a hollow core and a hollow jacket, means for connecting the spaces of the jackets in series for circulating a cooling medium therethrough and means for connecting the space of the cores in series and circulating the cooling, medium therethrough.

2. A mold, comprising a bed, a hollow core stepped in the bed and closed at its 'lower end thereby, a cap closing the upper end of the core and having its top of rounded form and a hollow jacket stepped in the bed and closed thereby.

3. A mold, comprising a bed, a hollow core stepped in the bed and closed at its lower end thereby, a vented cap closing the upper end of the core, means for circulating water through the core, a hollow jacket comprising concentric cylinders stepped at their lower ends in the bed and having the space formed between them closed thereby, a vented ring for closing the space between the upper ends of the cylinders and means for circulating water through the acket.

4. A gang of molds, comprising a foundation, a bed on the foundation, a plurality of cores having their lower ends stepped in the bed, vented caps closing the upper ends of the cores, hollow jackets inelosing the cores and having their lower ends stepped in said bed, vented rings closing the elements comprising the jackets, means for connecting the hollow jackets to cause the circulation of water therethrough, a water pipe embedded in the foundation and tubes extending through the foundation and bed and connecting the water pipe with the lower ends of the cores.

In testimony whereof I aflix my signature in presence of two witnesses.

DANIEL J. LEVEY.

lVitnesses:

DANIEL J. Lever, J11, GUERNSEY A. HALLOWELL. 

